datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2007,11 0:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 1:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 2:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 3:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 4:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 5:30:00,25 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,11 6:30:00,30 ,       0,0.594197,0.082168,0.166536
sgpcmbeC1.c1,2007,11 7:30:00,30 ,0.055728, 66.1507,21.63412, 13.8165
sgpcmbeC1.c1,2007,11 8:30:00,28 ,12.27835,108.6612,59.11017,20.38902
sgpcmbeC1.c1,2007,11 9:30:00,28 ,34.41925, 191.444,95.77566,41.15643
sgpcmbeC1.c1,2007,1110:30:00,29 ,58.83397, 271.252,123.1481, 61.9649
sgpcmbeC1.c1,2007,1111:30:00,29 ,61.69881,322.3108,146.7944,84.68963
sgpcmbeC1.c1,2007,1112:30:00,29 ,62.26873,312.6992,137.6066,80.71403
sgpcmbeC1.c1,2007,1113:30:00,29 ,60.69786, 309.324,132.9902,72.60779
sgpcmbeC1.c1,2007,1114:30:00,29 ,55.92467,239.6781,117.5591,59.43438
sgpcmbeC1.c1,2007,1115:30:00,29 ,27.33046,157.0681,86.75551,37.98291
sgpcmbeC1.c1,2007,1116:30:00,30 ,9.283513,133.9868,47.25171,22.21527
sgpcmbeC1.c1,2007,1117:30:00,30 ,       0,14.49429,4.511356,3.128132
sgpcmbeC1.c1,2007,1118:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1119:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1120:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1121:30:00,28 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1122:30:00,24 ,       0,       0,       0,       0
sgpcmbeC1.c1,2007,1123:30:00,27 ,       0,       0,       0,       0